Lunenburg Castle was first mentioned in 1339 and it was probably owned by the Van Zijl family. The tower house itself was first mentioned in 1400. In 1402 it was given as a fief to Ghijsbrecht van Lockhorst.
In 1680 Lunenburg Castle was enlarged with residential wings and stables which were built against the medieval tower house. In 1860 the owner at that time, a member of the Van Swinderen family, rebuilt the castle. The 17th century additions were torn down and that almost the entire moat was filled in. The medieval tower house was then incorporated in a new large mansion which rendered the tower almost invisible. After this the castle was rented out and sold several times.
Between 1925 and 1931 the castle was owned by Mr. Ernest Reinier van Eibergen Santhagens who provided the castle with modern comfort.
On 13 May 1940 Lunenburg Castle was searched by German troops for hidden arms and ammunition, causing much damage in the process. In 1944 the Germans had parked military vehicles under the large trees on the grounds of Lunenburg Castle. This led to a useless bombardement of the castle by Allied forces, because the vehicles had already been removed, which left the castle as an uninhabitable ruin.
Between 1968 and 1970 Lunenburg Castle was rebuilt after its appearance before 1800. This led to the situation we see today. At present the castle is owned by the Fentener van Vlissingen family. The present tower is 15,5 meters high, is almost square with 8,4 by 9,3 meters and has a wall thickness of 1,2 meters.
References:The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.